Exact Matching Concepts from Other Schemes

Closely Matching Concepts from Other Schemes

Sources

found: Pioneers 10 and 11 deep space missions, 1990.

found: Wikipedia, July 31, 2008(Pioneer 11 was the second mission (after its sister probe Pioneer 10) to investigate Jupiter and the outer solar system and the first to explore the planet Saturn and its main rings; also called Pioneer G; unmanned spacecraft launched from Cape Canaveral on Apr. 6, 1973)